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Network user management
While networking professionals protect their network perimeters, they must be just as careful to manage users on the inside. How can admins enforce network security policies and allocate user permissions? Take a look at these problem user profiles to... Learning Guide
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Troubleshooting -- 'Network Know-How' Chapter 17
Troubleshooting, Chapter 17 of the book 'Network Know-How,' shows you tools and methods that identify and solve network problems. Consider using the techniques in this chapter as a guide to fixing computer connection problems in all operating system ... Book Chapter
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Network management frameworks: FCAPS and ITIL
Network management is a complex topic, especially as the network has to handle more instances of unified communications, video, and virtualization. Thus far, two frameworks exist that can be of some use for understanding and taming network management... Crash Course
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Interop Las Vegas 2008: Special news coverage
SearchNetworking.com editors were in Las Vegas to bring you the most detailed coverage of Interop Las Vegas 2008. Read all the biggest news stories, interviews, and blog tidbits, download podcasts and watch exclusive videos from one of networking's b... Special News Coverage
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The IT Guy: Networking comics
In our networking comic series, the IT guy and his office coworkers encounter day-to-day data networking and office challenges. On this page, you'll find a listing of all our comics. Comic
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Top networking expert answers of 2007
The year's top networking questions answered by our experts on networking fundamentals, network administration, routing and switching, wireless networking, IPv4 and IPv6, infrastructure and project management, certifications and training, wireless LA... The best of SearchNetwork
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Tech support, I forgot my password: The IT Guy cartoon
If you've ever answered the phone for tech support, you've probably dealt with the proverbial clueless user. In this episode of The IT Guy networking cartoon, Dave takes his turn helping a frustrated (and frustrating) user with a forgotten password. Cartoon
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IP Accounting -- from Network Management: Accounting and Performance Strategies
IP Accounting, Chapter 6 of "Network Management: Accounting and Performance Strategies," describes the IP Accounting features in Cisco IOS and teaches you the different IP Accounting functions and SNMP MIB. Learn about IP Accounting Access Control Li... Chapter Download
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Understanding TCP/IP
This tutorial explains TCP/IP, including history, development, its use as a standard, Requests for Comment and the protocol suite. Tutorial
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Gigabit Ethernet and 10 Gigabit Ethernet: Technology overview
This overview of Gigabit Ethernet and 10G lays the foundation for understanding Gigabit Ethernet technology and the advantages it brings to your network. Networking FastFacts
- See More: Essential Knowledge on Network Administration
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The answer to the top 5 virtualization problems
Transitioning to a virtualized network can be challenging for network engineers, despite the advantages. Understand these top five virtualization problems and how to handle them. Fast Packet | 22 Dec 2011
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vCloud and VEPA: Neither answer is a winner
vCloud and VEPA fail to address the virtualization networking problem, as both are deemed proprietary and don’t enable networking functions within the vSphere environment. Fast Packet | 22 Dec 2011
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Network technology trends for 2012: The big picture
Forrester Research analyst Andre Kindness shares big picture predictions for network technology trends in 2012: the rise of Huawei and why networkers need software skills News | 22 Dec 2011
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When physical security breaches are the problem
Network engineers are so busy dealing with intrusion prevention and firewalling that they forget about physical security breaches. Blogger Ethan Banks has some advice. Fast Packet | 22 Dec 2011
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Cisco upgrades the Catalyst 6500…but some wonder why
The Cisco Catalyst 6500 upgrade announced this year didn't excite everyone as expected. Blogger Greg Ferro wonders why Cisco didn't stay focused on the Nexus line instead. Fast Packet | 22 Dec 2011
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Need 10 GbE optimization? Hardware is not the solution
10 GbE brings speed, but network latency is still an issue. The answer to 10 GbE optimization can't be found in increasing hardware. Our blogger says it's about the application. Fast Packet | 22 Dec 2011
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Cius vs. the iPad: Why bother comparing?
Cisco launched its Cius tablet this year, which focuses on enterprise apps, desktop virtualization and network management, but one blogger says he'd rather have an iPad. Fast Packet | 22 Dec 2011
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Can Virtual Extensible LAN solve the VLAN problem?
The Virtual Extensible LAN (VXLAN) protocol could mean the ability to spin off many more VLANs across dispersed data centers. So why does blogger Ivan Pepelnjak take issue? Fast Packet | 22 Dec 2011
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OpenFlow controllers will only take shape if vendors play nice
OpenFlow controllers can result in a new level of granular network management and network virtualization on top of commodity hardware, but vendors will have to step out of the way. Fast Packet | 22 Dec 2011
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Network fabrics may not be the end-all
Feature-rich network fabrics have been all the rage, but one blogger says the technology is only for creating more bandwidth. Other features should be left to edge software. Fast Packet | 22 Dec 2011
- See More: News on Network Administration
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Understand Windows tracert output to troubleshoot network connectivity
Troubleshooting network connectivity from the command line interface using the traceroute (tracert) command won't solve problems if you don't know what the output results mean. This tip examines each line of the tracert command output to help you det... Tip
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Using nmap for Linux administration and security
The open source tool nmap is ideal for network troubleshooting, scanning and auditing. The tool can be used to identify devices on the network as well as the services running on them. It can also identify advanced information, such as operating syste... Tip
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Using tracert and TTL to troubleshoot network connectivity problems
When the network is slow, packet loss could be the culprit. To troubleshoot your connection, learn how the time-to-live (TTL) and tracert ping commands can determine whether packet loss is occurring. Tip
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Checking IP configuration to troubleshoot Windows network connectivity
You can diagnose network connectivity problems by checking your TCP/IP configuration. To learn how to do this, article author Brien Posey gives you step-by-step directions on how to perform simple command line (CL) ping tests for a computer running W... Tip
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Virtual machines present dynamic environment issues for network pros
Virtual machines (VMs) routinely move between servers and can move across subnets, and virtualization blurs the line between the network and the server. These dynamic environment issues can challenge network professionals. In this tip, learn more abo... Tip
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Cisco interface addressing
A look at the various commands that can be used to address Cisco router interfaces on the WAN and LAN and when to use each. Tip
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QoS components: A closer look
A large component to a successful voice over IP (VoIP) infrastructure is effectively deploying a quality of service (QoS) model. QoS components entail classification and marking, congestion management, congestion avoidance, policing and shaping, and ... Tip
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Network test plan: Checklist for architecture changes
For every change you make to your network architecture, you should have a test plan and a backout plan. In this tip, learn how to build a test plan and review a sample checklist of things to include. Tip
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Network engineering overview: Detailed design considerations
Implementing architectural concepts and dealing with detailed network designs must be second nature to the network engineer. In the conclusion of our tip series on things network engineers need to know to be effective, Tom Lancaster provides some con... Tip
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Network engineering overview: Policy and process
Policy and process may seem like dull and superfluous activities, but they exist to improve communication between different departments of your company. In the third installment of his series on things network engineers need to know to be effective, ... Tip
- See More: Tips on Network Administration
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Providing fastest Internet sharing speed for clients
Lindi Horton explains how to provide the fastest Internet sharing speed to a client when many users are trying to access the internet as well as potential issues and solutions. Answer
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Advantages of DNS Made Easy
Network Administration expert, Lindi Horton provides her expertise on advantages of DNS, and provides an example of a reliable and flexible DNS service. Answer
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Expert advice for file server troubleshooting
Network administration expert, Lindi Horton answers a query regarding file server troubleshooting. She explains potential reasons for file server issues, and things to check to solve the problem. Answer
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Expert tips from Lindi Horton on connecting hosts in different subnets
Network administration expert, Lindi Horton explains the concept of connecting hosts in different subnets. She elaborates on what you will need and how you will need to execute the connection. Answer
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Packet vs. circuit switching data networks: An expert explains the differences
Network administration expert, Lindi Horton answers a query regarding packet vs. circuit switching in regards to data networks by using an analogy to help explain the concept of both. Answer
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Installing multiple network services to one server
Network Administration expert, Lindi Horton explains installing multiple network services to one server, and shortcuts to take to ensure all work together successfully. Answer
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Advantages of managed DNS services
Network Administration expert, Lindi Horton explains the advantages of managed DNS services, and provides an example of a reliable and flexible DNS service. Answer
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How does User-based Rate Limiting (UBRL) do if I have oversubscribed a port or switch?
Ask the Expert
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How do I set the Web page default on a network of computers without setting them all individually?
Learn how to set a default for a network of computers if a group policy isn't working. Instead of setting each machine manually, learn what else you can do. Ask the Expert
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What IP enables file sharing among multiple computers on different Internet connections?
Learn how to enable file sharing among a group of computers, as well as computers within separate workgroups, that are using four different Internet connections, in this expert response. Ask the Expert
- See More: Expert Advice on Network Administration
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converged network adapter (CNA)
A converged network adapter (CNA) is a single network interface card (NIC) that contains both a Fibre Channel (FC) host bus adapter (HBA) and a TCP/IP Ethernet NIC. Definition
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availability
1) In a telephone circuit, availability is the ratio between the time during which the circuit is operational and elapsed time. 2) In a network switching system, availability is the accessibility of input and output ports. Word
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carrier detect
Word
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fiber jumper
A fiber jumper, sometimes called a fiber patch cord is a length of fiber cabling fitted with LC, SC, MTRJ or ST connectors at each end... (Continued) Word
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patch cord
A patch cord is a length of cable, with connectors on the ends, that is used to connect an end device to something else, such as a power source. Word
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staggered quadrature phase-shift keying
Staggered quadrature phase-shift keying (SQPSK), also known as offset quadrature phase-shift keying (OQPSK), is a method of phase-shift keying (PSK) in which the signal carrier-wave phase transition is always 90 degrees or 1/4 cycle at a time... (Con... Word
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layer 2
Word
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networking
In information technology, networking is the construction, design, and use of a network. Word
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OSI (Open Systems Interconnection)
Word
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Network layer
Word
- See More: Definitions on Network Administration
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Networking podcasts
Listen to our networking podcasts and learn more about technologies you need to know to keep your network running smoothly. Podcast
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The answer to the top 5 virtualization problems
Transitioning to a virtualized network can be challenging for network engineers, despite the advantages. Understand these top five virtualization problems and how to handle them. Fast Packet
-
vCloud and VEPA: Neither answer is a winner
vCloud and VEPA fail to address the virtualization networking problem, as both are deemed proprietary and don’t enable networking functions within the vSphere environment. Fast Packet
-
Network technology trends for 2012: The big picture
Forrester Research analyst Andre Kindness shares big picture predictions for network technology trends in 2012: the rise of Huawei and why networkers need software skills News
-
When physical security breaches are the problem
Network engineers are so busy dealing with intrusion prevention and firewalling that they forget about physical security breaches. Blogger Ethan Banks has some advice. Fast Packet
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Cisco upgrades the Catalyst 6500…but some wonder why
The Cisco Catalyst 6500 upgrade announced this year didn't excite everyone as expected. Blogger Greg Ferro wonders why Cisco didn't stay focused on the Nexus line instead. Fast Packet
-
Need 10 GbE optimization? Hardware is not the solution
10 GbE brings speed, but network latency is still an issue. The answer to 10 GbE optimization can't be found in increasing hardware. Our blogger says it's about the application. Fast Packet
-
Cius vs. the iPad: Why bother comparing?
Cisco launched its Cius tablet this year, which focuses on enterprise apps, desktop virtualization and network management, but one blogger says he'd rather have an iPad. Fast Packet
-
Can Virtual Extensible LAN solve the VLAN problem?
The Virtual Extensible LAN (VXLAN) protocol could mean the ability to spin off many more VLANs across dispersed data centers. So why does blogger Ivan Pepelnjak take issue? Fast Packet
-
OpenFlow controllers will only take shape if vendors play nice
OpenFlow controllers can result in a new level of granular network management and network virtualization on top of commodity hardware, but vendors will have to step out of the way. Fast Packet
-
Network fabrics may not be the end-all
Feature-rich network fabrics have been all the rage, but one blogger says the technology is only for creating more bandwidth. Other features should be left to edge software. Fast Packet
- See More: All on Network Administration
About Network Administration
Here we offer tutorials on networking basics, network documentation and network maintenance for the network administrator. Learn about network mapping and tracking network devices and IP addresses to save time and resources, along with ways to simplify routine admin tasks such as operating system upgrades and security patch management.